163
FNUS56 KPDT 211406
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
706 AM PDT MON JUL 21 2025
DISCUSSION
A LOW-PRESSURE SYSTEM OVER THE PACIFIC NORTHWEST
WILL FACILITATE WIDESPREAD RAIN SHOWERS OVER THE EASTERN MOUNTAINS
THIS MORNING, WITH MANY LOCATIONS HAVING RECEIVED A WETTING RAIN
(0.10" OR GREATER) OVERNIGHT. THIS AFTERNOON THROUGH EVENING,
THERE IS A 20-40% CHANCE OF THUNDERSTORMS OVER THE EASTERN
MOUNTAINS AND CASCADE EAST SLOPES WITH LOWER (10-25%) CHANCES
ALONG THE BLUE MOUNTAIN FOOTHILLS. SHOWER AND THUNDERSTORM
ACTIVITY WILL BECOME MORE ISOLATED FOR THE AFOREMENTIONED AREAS
TUESDAY AFTERNOON AS THE LOW DEPARTS TO THE EAST.
***THUNDERSTORMS IMPLY STRONG GUSTY WINDS***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***VENTILATION INDEX IS DERIVED FROM THE
TRANSPORT WIND MULTIPLIED BY THE MIXING
HEIGHT IN 100'S OF FEET. INDEX CATEGORIES
ARE A GENERALIZED INDICATOR AND USERS ARE
ENCOURAGE TO DEVELOP CRITERIA THAT ARE
SUITABLE AND REPRESENTATIVE OF DISPERSION
CONDITIONS IN THEIR LOCAL AREA OF INTEREST.***
NOTE: MAX TRANSPORT WINDS MAY NOT OCCUR
AT THE SAME TIME AS MAX MIXING HEIGHT.
WAZ695-212345-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....65-73...EXCEPT 56-64 RIDGES.
* MIN HUMIDITY........61-76 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (31-101) INCREASING TO POOR TO FAIR
(131-265) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....47-54.
* MAX HUMIDITY........80-95 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 6 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (70-222) DECREASING TO POOR
(25-120) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....70-79...EXCEPT 61-69 RIDGES.
* MIN HUMIDITY........46-60 PERCENT...EXCEPT 57-71 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....30 PERCENT (CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (36-158) INCREASING TO FAIR (231-445) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLEAR. LOWS 49 TO
54. HIGHS 70 TO 83. WEST WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 69 TO 84. WEST
WINDS 2 TO 7 MPH.
FRIDAY
CLEAR. LOWS 48 TO 56. HIGHS 66 TO 80. WEST WINDS 4 TO
10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 54. HIGHS 65 TO 80. WEST
WINDS 4 TO 9 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 66 TO 80. WEST WINDS
3 TO 8 MPH.
WAZ690-212345-
KITTITAS VALLEY-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....72-79...EXCEPT 62-73 RIDGES.
* MIN HUMIDITY........53-66 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 1 TO 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH.
* VENTILATION INDEX...POOR (60-124) INCREASING TO POOR TO FAIR
(185-331) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....54-59.
* MAX HUMIDITY........74-89 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 6 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (114-212) DECREASING TO POOR
(25-91) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING, THEN A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....78-85...EXCEPT 66-79 RIDGES.
* MIN HUMIDITY........40-51 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (51-149) INCREASING TO FAIR (275-437) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 56 TO 62. HIGHS 83 TO 91.
NORTHWEST WINDS 1 TO 6 MPH.
THURSDAY
CLEAR. LOWS 59 TO 64. HIGHS 86 TO 95. WEST WINDS 4 TO
9 MPH.
FRIDAY
CLEAR. LOWS 57 TO 62. HIGHS 83 TO 92. NORTHWEST WINDS
7 TO 13 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 82 TO 90. WEST
WINDS 6 TO 12 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 82 TO 91. WEST WINDS
5 TO 11 MPH.
WAZ694-212345-
YAKAMA ALPINE DISTRICT-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....67-74...EXCEPT 57-68 RIDGES.
* MIN HUMIDITY........50-65 PERCENT...EXCEPT 62-77 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-55) INCREASING TO POOR TO FAIR
(114-240) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....46-54.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (84-184) DECREASING TO POOR (25-63)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-83...EXCEPT 64-76 RIDGES.
* MIN HUMIDITY........38-51 PERCENT...EXCEPT 47-62 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-67) INCREASING TO POOR TO FAIR
(184-302) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 58. HIGHS 75 TO 88. WEST
WINDS 1 TO 5 MPH.
THURSDAY
CLEAR. LOWS 51 TO 59. HIGHS 75 TO 89. WEST WINDS 2 TO
7 MPH.
FRIDAY
CLEAR. LOWS 49 TO 57. HIGHS 73 TO 87. WEST WINDS 4 TO
9 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 72 TO 85. WEST
WINDS 2 TO 7 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 56. HIGHS 73 TO 86. WEST WINDS
2 TO 7 MPH.
ORZ691-WAZ691-212345-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE.....72-79...EXCEPT 69-74 RIDGES.
* MIN HUMIDITY........43-58 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (48-106) INCREASING TO POOR TO FAIR
(183-355) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING.
* MIN TEMPERATURE.....53-59.
* MAX HUMIDITY........76-91 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (115-271) DECREASING TO POOR
(25-54) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....82-87...EXCEPT 76-83 RIDGES.
* MIN HUMIDITY........29-39 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (48-154) INCREASING TO FAIR TO GOOD
(317-509) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 87 TO 93. WEST
WINDS 1 TO 6 MPH.
THURSDAY
CLEAR. LOWS 60 TO 65. HIGHS 88 TO 96. SOUTHWEST WINDS
4 TO 10 MPH.
FRIDAY
CLEAR. LOWS 59 TO 65. HIGHS 86 TO 94. WEST WINDS 6 TO
12 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 57 TO 63. HIGHS 84 TO 92. WEST
WINDS 5 TO 11 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 57 TO 63. HIGHS 84 TO 91. WEST WINDS
4 TO 9 MPH.
ORZ692-WAZ692-212345-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....64-74...EXCEPT 57-63 RIDGES.
* MIN HUMIDITY........55-70 PERCENT...EXCEPT 69-84 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-82) INCREASING TO POOR (68-190) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....47-55.
* MAX HUMIDITY........83-98 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (72-170) DECREASING TO POOR (25-56)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....71-82...EXCEPT 64-70 RIDGES.
* MIN HUMIDITY........37-52 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 1 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (45-129) INCREASING TO FAIR (252-402) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 59. HIGHS 74 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
CLEAR. LOWS 53 TO 61. HIGHS 78 TO 90. SOUTHWEST WINDS
2 TO 7 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 53 TO 61. HIGHS 77 TO 88. SOUTHWEST
WINDS 2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 53 TO 60. HIGHS 75 TO 86. WEST
WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 52 TO 61. HIGHS 75 TO 86. WEST
WINDS 2 TO 7 MPH.
ORZ693-WAZ693-212345-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....65-74...EXCEPT 59-67 RIDGES.
* MIN HUMIDITY........55-69 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................80 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-74) INCREASING TO POOR (47-127) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........83-98 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....30 PERCENT (CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (49-129) DECREASING TO POOR (25-58)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....71-80...EXCEPT 64-71 RIDGES.
* MIN HUMIDITY........37-46 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (38-98) INCREASING TO FAIR (251-389) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 58. HIGHS 77 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 82 TO 91. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50 TO 61. HIGHS 81 TO 91. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 52 TO 61. HIGHS 80 TO 90.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 52 TO 61. HIGHS 80 TO 89. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ701-212345-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS.
* MAX TEMPERATURE.....73-78.
* MIN HUMIDITY........43-55 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (48-154) INCREASING TO FAIR (278-410) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....51-56.
* MAX HUMIDITY........76-91 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (231-361) DECREASING TO POOR (29-99)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....81-86.
* MIN HUMIDITY........33-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 1
TO 6 MPH IN THE AFTERNOON. IN THE EASTERN COLUMBIA RIVER
GORGE, WEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (46-154) INCREASING TO FAIR (267-399) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 86 TO 91. WEST
WINDS 2 TO 7 MPH.
THURSDAY
CLEAR. LOWS 57 TO 62. HIGHS 85 TO 91. WEST WINDS 4 TO
9 MPH.
FRIDAY
CLEAR. LOWS 54 TO 60. HIGHS 83 TO 88. WEST WINDS 6 TO
12 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 53 TO 59. HIGHS 81 TO 87. WEST
WINDS 4 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 82 TO 87. WEST WINDS
4 TO 9 MPH.
ORZ702-212345-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....69-75...EXCEPT 61-71 RIDGES.
* MIN HUMIDITY........45-60 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (28-96) INCREASING TO POOR TO FAIR
(150-280) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-54.
* MAX HUMIDITY........76-91 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (101-235) DECREASING TO POOR
(25-65) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....78-84...EXCEPT 71-79 RIDGES.
* MIN HUMIDITY........35-48 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (27-85) INCREASING TO POOR TO FAIR
(147-285) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 59. HIGHS 76 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 60. HIGHS 75 TO 89. WEST
WINDS 1 TO 6 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 72 TO 86. WEST WINDS
2 TO 7 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 70 TO 85. WEST
WINDS 2 TO 7 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 71 TO 85. WEST WINDS
2 TO 7 MPH.
ORZ695-212345-
EAGLE CAP WILDERNESS-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....62-73...EXCEPT 52-62 RIDGES.
* MIN HUMIDITY........56-71 PERCENT...EXCEPT 68-83 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................80 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-106) INCREASING TO POOR (76-198) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....45-52...EXCEPT 39-47 RIDGES.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH BECOMING
NORTHWEST 2 TO 5 MPH AFTER MIDNIGHT.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....30 PERCENT (CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (41-133) DECREASING TO POOR (25-75)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....67-78...EXCEPT 56-67 RIDGES.
* MIN HUMIDITY........34-49 PERCENT...EXCEPT 46-61 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (25-83) INCREASING TO POOR TO FAIR
(175-339) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 67 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 48 TO 57. HIGHS 71 TO 86.
NORTHWEST WINDS 1 TO 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 57. HIGHS 71 TO 86. WEST WINDS
1 TO 6 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 49 TO 57. HIGHS 70 TO 85.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 57. HIGHS 70 TO 85. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ694-212345-
GRANDE RONDE VALLEY OF OREGON-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....70-75.
* MIN HUMIDITY........62-67 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 2 TO 5
MPH IN THE AFTERNOON.
* CWR.................80 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (57-105) INCREASING TO POOR (101-195) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....47-52.
* MAX HUMIDITY........94-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 1 TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (137-197) DECREASING TO POOR (36-80)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....76-81.
* MIN HUMIDITY........37-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTH 2 TO 5
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (65-123) INCREASING TO FAIR (296-376) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 83 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
CLEAR. LOWS 52 TO 57. HIGHS 87 TO 92. NORTHWEST WINDS
1 TO 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 87 TO 92. NORTHWEST
WINDS 2 TO 7 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 85 TO 90.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 53 TO 58. HIGHS 86 TO 91. NORTHWEST
WINDS 2 TO 7 MPH.
ORZ699-212345-
WESTERN FORESTED BLUE MOUNTAINS-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....65-71...EXCEPT 59-66 RIDGES.
* MIN HUMIDITY........55-70 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-61) INCREASING TO POOR TO FAIR
(134-244) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....43-50.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (103-215) DECREASING TO POOR
(25-67) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....72-78...EXCEPT 65-73 RIDGES.
* MIN HUMIDITY........32-47 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (38-98) INCREASING TO FAIR (207-323) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 74 TO 83. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 77 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 77 TO 85. WEST WINDS
1 TO 5 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 75 TO 84.
NORTHWEST WINDS UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 75 TO 84. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-212345-
JOHN DAY VALLEY-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. HAZY IN THE MORNING. SHOWERS
LIKELY IN THE MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....67-75...EXCEPT 62-67 RIDGES.
* MIN HUMIDITY........41-54 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...POOR (27-75) INCREASING TO FAIR (233-367) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING.
* MIN TEMPERATURE.....47-53.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (179-309) DECREASING TO POOR
(25-71) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....76-83...EXCEPT 71-76 RIDGES.
* MIN HUMIDITY........25-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (38-90) INCREASING TO FAIR (217-339) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 81 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS 83 TO 92.
NORTHWEST WINDS 1 TO 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 53 TO 59. HIGHS 82 TO 90. WEST WINDS
2 TO 7 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 53 TO 59. HIGHS 80 TO 89.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 81 TO 89. NORTHWEST
WINDS 1 TO 6 MPH.
ORZ700-212345-
CENTRAL MOUNTAINS OF OREGON-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....70-75...EXCEPT 62-69 RIDGES.
* MIN HUMIDITY........35-44 PERCENT...EXCEPT 40-55 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 3
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (43-97) INCREASING TO FAIR TO GOOD
(315-585) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....41-50.
* MAX HUMIDITY........80-95 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 3 TO 8 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH AROUND 15 MPH BECOMING NORTHWEST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...FAIR (269-475) DECREASING TO POOR (25-52)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....77-84...EXCEPT 69-76 RIDGES.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (26-54) INCREASING TO POOR TO FAIR
(192-296) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 55. HIGHS 82 TO 88. NORTH
WINDS 1 TO 6 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 84 TO 91.
NORTHWEST WINDS 1 TO 6 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS 83 TO 89. WEST WINDS
3 TO 8 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 48 TO 55. HIGHS 80 TO 87.
NORTHWEST WINDS 2 TO 7 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 46 TO 54. HIGHS 81 TO 87. WEST WINDS
2 TO 7 MPH.
ORZ703-212345-
WARM SPRINGS RESERVATION-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....70-78...EXCEPT 58-67 RIDGES.
* MIN HUMIDITY........37-48 PERCENT...EXCEPT 53-68 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (53-125) INCREASING TO FAIR (266-450) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....48-53.
* MAX HUMIDITY........74-86 PERCENT.
* HUMIDITY RECOVERY...GOOD...EXCEPT EXCELLENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (187-337) DECREASING TO POOR
(25-58) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....79-87...EXCEPT 67-77 RIDGES.
* MIN HUMIDITY........26-36 PERCENT...EXCEPT 38-53 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...POOR (31-69) INCREASING TO POOR TO FAIR
(174-252) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 81 TO 92.
NORTHWEST WINDS 2 TO 7 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 81 TO 94. WEST
WINDS 2 TO 7 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 78 TO 92. WEST WINDS
4 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 51 TO 57. HIGHS 77 TO 90. WEST
WINDS 3 TO 8 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 78 TO 90. WEST WINDS
2 TO 7 MPH.
ORZ704-212345-
NORTHERN DESCHUTES NATIONAL FOREST-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....69-76...EXCEPT 56-67 RIDGES.
* MIN HUMIDITY........41-51 PERCENT...EXCEPT 55-70 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 1 TO 6
MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (42-118) INCREASING TO FAIR (208-376) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....42-48.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (131-263) DECREASING TO POOR
(25-49) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....78-85...EXCEPT 64-75 RIDGES.
* MIN HUMIDITY........28-37 PERCENT...EXCEPT 39-54 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* VENTILATION INDEX...POOR (25-55) INCREASING TO POOR TO FAIR
(142-228) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 75 TO 89. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 55. HIGHS 77 TO 90. WEST
WINDS 2 TO 7 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 47 TO 53. HIGHS 75 TO 88. WEST WINDS
3 TO 8 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 52. HIGHS 72 TO 85. WEST
WINDS 2 TO 7 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS 73 TO 86. WEST WINDS
2 TO 7 MPH.
ORZ705-212345-
SOUTHERN DESCHUTES NATIONAL FOREST-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....67-72...EXCEPT 57-66 RIDGES.
* MIN HUMIDITY........38-48 PERCENT...EXCEPT 48-63 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING NORTHWEST 2
TO 5 MPH IN THE AFTERNOON.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (59-129) INCREASING TO FAIR (245-481) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....38-44.
* MAX HUMIDITY........90-100 PERCENT...EXCEPT 78-93 PERCENT RIDGES.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (168-380) DECREASING TO POOR
(25-45) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....74-80...EXCEPT 64-73 RIDGES.
* MIN HUMIDITY........27-35 PERCENT...EXCEPT 32-47 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE WEST
IN THE AFTERNOON.
* VENTILATION INDEX...POOR (25-44) INCREASING TO POOR TO FAIR
(142-212) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 76 TO 86. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 46 TO 52. HIGHS 77 TO 87. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS 75 TO 85. WEST WINDS
1 TO 6 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 73 TO 83. WEST
WINDS 1 TO 6 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 74 TO 84. WEST WINDS
1 TO 5 MPH.
ORZ697-212345-
CENTRAL BLUE MOUNTAINS-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....67-72...EXCEPT 60-67 RIDGES.
* MIN HUMIDITY........46-61 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 2 TO 5
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................70 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH.
* VENTILATION INDEX...POOR (25-102) INCREASING TO FAIR (203-459) IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.....41-47.
* MAX HUMIDITY........88-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
* VENTILATION INDEX...POOR TO FAIR (136-278) DECREASING TO POOR
(25-74) AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....72-77...EXCEPT 66-73 RIDGES.
* MIN HUMIDITY........28-36 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (40-102) INCREASING TO FAIR (313-491) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 74 TO 82. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS 77 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLEAR. LOWS 49 TO
54. HIGHS 77 TO 84. NORTHWEST WINDS 1 TO 5 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO
55. HIGHS 76 TO 83. NORTHWEST WINDS 1 TO 5 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 47 TO
53. HIGHS 76 TO 83. NORTHWEST WINDS 1 TO 5 MPH.
ORZ698-212345-
SOUTHERN BLUE MOUNTAINS-
706 AM PDT MON JUL 21 2025
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....67-72...EXCEPT 62-67 RIDGES.
* MIN HUMIDITY........35-46 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH BECOMING WEST 3 TO 6
MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH BECOMING WEST 3 TO 6
MPH IN THE AFTERNOON.
* CWR.................50 PERCENT.
* CHC OF LIGHTNING....40 PERCENT (CHANCE).
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...POOR (25-88) INCREASING TO GOOD TO EXCELLENT
(532-934) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING.
* MIN TEMPERATURE.....42-47.
* MAX HUMIDITY........82-95 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
* VENTILATION INDEX...FAIR (260-410) DECREASING TO POOR (28-76)
AFTER MIDNIGHT.
TUESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-80.
* MIN HUMIDITY........24-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...POOR (49-93) INCREASING TO FAIR TO GOOD
(377-513) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY
MOSTLY CLEAR. LOWS 47 TO 52. HIGHS 79 TO 85. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 82 TO 88. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
FRIDAY
A SLIGHT CHANCE OF SHOWERS. MOSTLY CLEAR. LOWS 50 TO
55. HIGHS 81 TO 88. NORTHWEST WINDS 1 TO 6 MPH.
SATURDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 49 TO
55. HIGHS 80 TO 86. WEST WINDS 1 TO 6 MPH.
SUNDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 48 TO
53. HIGHS 81 TO 86. WEST WINDS 1 TO 6 MPH.
8-14 DAY OUTLOOK FOR MONDAY JULY 28 THROUGH SUNDAY AUGUST 3
A GREATER CHANCE OF NEAR- TO ABOVE-NORMAL TEMPERATURES AND NEAR-
TO BELOW- NORMAL PRECIPITATION.
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